Home / 28,592,451.90-39,457,886.40-15,539,711.76

Finding the Fourth Proportional to 28,592,451.90, 39,457,886.40 and 15,539,711.76

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Solution

The fourth proportional to 28,592,451.90, 39,457,886.40 and 15,539,711.76 is: 21,444,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592,451.90 : 39,457,886.40 = 15,539,711.76 : x
  2. Step 2: Convert to fraction form
    28,592,451.90/39,457,886.40 = 15,539,711.76/x
  3. Step 3: Cross multiply
    28,592,451.90x = 39,457,886.40 × 15,539,711.76
  4. Step 4: Simplify right side
    28,592,451.90x = 613,164,181,314,824
  5. Step 5: Solve for x
    x = 613,164,181,314,824/28,592,451.90
  6. Step 6: Final answer
    x = 21,444,966.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.